EQUITY-BASED COMPENSATION - Restated Exchange Agreement (Details)		3 Months Ended	12 Months Ended						36 Months Ended	72 Months Ended
	Sep. 30, 2019	Mar. 31, 2020 USD ($) $ / shares	Dec. 31, 2029	Dec. 31, 2026	Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2025	Dec. 31, 2028
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Maturity of notes issued under exchange agreement	3 years
Exchange election notice period	60 days
Exchange consummation period	155 days
Beneficial ownership percentage following an exchange, minimum threshold		1.00%
Required notice period for remaining units following exchange		36 months
Beneficial ownership percentage following final exchange, minimum threshold		5.00%
OCGH Units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Valuation assumptions, multiple applied to fee-related earnings less stock-based compensation excluding depreciation and amortization		13.5
Valuation assumptions, multiple applied to net incentives created		6.75
Valuation assumptions, trailing period for net incentives created		3 years
Valuation assumptions, percentage of net cash value		100.00%
Valuation assumptions, percentage of corporate investments value		100.00%
Valuation assumptions, percentage of fund-level net accrued incentives		75.00%
Converted Class A Units and Phantom Units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Valuation assumptions, price per unit (in usd per share) | $ / shares		$ 49.00
Maximum exchange consideration amount payable, incremental amount above exchange consideration | $		$ 20,000,000
Treasury rate
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Notes issued under exchange agreement, basis spread on variable rate	3.00%	3.00%
Forecast | OCGH Units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Maximum percentage of units to exchange in aggregate, annual limit					35.00%	30.00%	25.00%	20.00%
Forecast | Messrs. Howard Marks, Bruce Karsh, Jay Wintrob, John Frank, Sheldon Stone, Richard Masson And Larry Keele | OCGH Units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Maximum percentage of units to exchange per individual				100.00%				20.00%
Maximum percentage of units to exchange per individual, additional annual limit									20.00%
Forecast | Current employees not separately named | OCGH Units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Maximum percentage of units to exchange per individual			100.00%					12.50%
Maximum percentage of units to exchange per individual, additional annual limit										12.50%
Maximum | OCGH Units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Valuation assumptions, trailing period for fee-related earnings less stock-based compensation excluding depreciation and amortization		3 years
Minimum | OCGH Units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Valuation assumptions, trailing period for fee-related earnings less stock-based compensation excluding depreciation and amortization		2 years